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Power of a Power

Solve : [2-1...

Question

Solve :
$[{(2^{- 1})^{- 1}}^{- 1}]^{- 1}$

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Solution

$[{(2^{- 1})^{- 1}}^{- 1}]^{- 1}$
$= {(2^{- 1})^{- 1}}^{- 1}$
$= (2^{- 1})^{- 1}$
$= 2^{1} = 2$

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